17
R
T3
T1
T2
S
C
COMPRESSOR
OUTDOOR
FAN MOTOR
THREE PHASE
FIELD SUPPLY
CAPACITOR
GROUNDING
LUG
HIGH PRES.
SWITCH
CONTACTOR
T3
L1
L2
L3
GL1
L2
L3
CCH
(If Equipped)
T2
T1
YELLOW/BLACK
BLUE
ORANGE
BLACK
YELLOW
RED
BLACK
esahP eerhT)noitceS roodtuO( renoitidnoC riA metsyS tilpS
WIRING DIAGRAM
NOTES:
1. Disconnect all power before servicing.
2. For supply connections use copper conductors only.
3. For replacement wires use conductors suitable for 105 deg. C.
4. For supply wire ampacities and overcurrent protection, see unit rating plate.
5. Connect to 24 vac/40 va/class 2 circuit. See furnace/air handler installation
instructions for control circuit and optional relay/transformer kits.
1. Couper le courant avant de faire letretien.
2. Employez uniquement des conducteurs en cuivre.
710688A
05/08
FIELD WIRING
LEGEND:
LOW VOLTAGE
HIGH VOLTAGE
HPS
Compressor
Contacts
L3
T3
L2
S
C
R
Capacitor
Outdoor
Fan Motor
T2
L1
CCH
(If Equipped)
T1
Compressor
CC
CC - Contactor Coil
CCH - Crankcase Heater
HPS - High Pressure Switch
24 Volt Field
Connections
¢710688N¤
Figure 11. Wiring Diagram for S4BD, 3- Phase Models
(3, 4, & 5 Ton Units)
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